Loosening prevention lace

Abstract

A loosening prevention lace which overcomes the problems where the lace is slackened or undone upon the lace being tied up through the eyelets for fastening the shoes, garment and as such and which brings unforeseen effect on design or appearance as well. The loosening prevention lace is provided by weaving one picot forming linear body or a plurality of picot forming linear bodies into a tubular woven fabric in a warp yarn direction thereof and protruding one picot forming linear body or a plurality of picot forming linear bodies from a surface of the tubular woven fabric with a certain interval over a longitudinal direction of the tubular fabric in a loop form.

The invention claimed is: 
     
       1. A loosening prevention lace comprising:
 a plurality of picot forming linear bodies; and 
 a tubular woven fabric having the plurality of picot forming linear bodies woven into the tubular woven fabric in a warp yarn direction of the tubular woven fabric, the plurality picot forming linear bodies protruding from a surface of the tubular woven fabric at a predetermined interval over a longitudinal direction of the tubular woven fabric in loops form, the plurality of picot forming linear bodies being tied with one another with weft yarns within the tubular woven fabric at portions of the loosening prevention lace where any loop does not protrude from the surface of the tubular woven fabric. 
 
     
     
       2. The loosening prevention lace according to  claim 1 , wherein:
 the tubular woven fabric includes a weave in which elastic yarns are incorporated in a part of warp yarns and which has stretchability in the warp yarn direction; 
 the plurality of picot forming linear bodies are a flexible lace or yarn material that is adopted for the plurality of picot forming linear bodies; and 
 the loops formed by the plurality of picot forming linear bodies, change into a slow sloped shape with a smaller curvature upon the tubular woven fabric being elongated, as compared to changing into an acute sloped shape with a larger curvature upon the tubular woven fabric being relaxed. 
 
     
     
       3. The loosening prevention lace according to  claim 1 , wherein the plurality of picot forming linear bodies is formed of a lace material made from elastomer unitarily with a diameter of 1 to 3 mm. 
     
     
       4. The loosening prevention lace according to  claim 1 , wherein the plurality of picot forming linear bodies is formed of a lace material with an apparent diameter of 1 to 3 mm in which a plurality of yarns are aggregated into integration. 
     
     
       5. The loosening prevention lace according to  claim 1 , wherein:
 a pitch between adjacent loops protruding from the surface of the tubular woven fabric ranges from 5 to 50 mm; 
 a root-to-root interval of each loop ranges from 2 to 10 mm; and 
 a height of each loop ranges from 1 to 7 mm. 
 
     
     
       6. The loosening prevention lace according to  claim 1 , wherein the plurality of picot forming linear bodies is formed of a lace material which is made from a thermally fusible fibers material having a melting point of 120° C. or higher, and the plurality of picot forming linear bodies are thermally fused to warp yarns and the weft yarns of the tubular woven fabric within the tubular woven fabric. 
     
     
       7. The loosening prevention lace according to  claim 6 , wherein the plurality of picot forming linear bodies woven into the tubular woven fabric are thermally fused to one another within the tubular woven fabric. 
     
     
       8. The loosening prevention lace according to  claim 1 , wherein on both sides of a lace main body section in which the plurality of picot forming linear bodies continuously protrude from the surface of the tubular woven fabric at the predetermined interval over the longitudinal direction of the tubular woven fabric in the loops form, a lace tip section having a core which corresponds to the plurality of picot forming linear bodies within the tubular woven fabric is formed thinner than the lace main body section. 
     
     
       9. The loosening prevention lace according to  claim 8 , wherein at the lace tip section, elastic yarns woven into warp yarns so as to form a part of the warp yarns are disposed in parallel to the plurality of picot forming linear bodies within the tubular woven fabric in such a state that the elastic yarns do not intermingle with the weft yarns.